Electric soldering device



Aprfifi 141'; N25. 1,533,959

v v WAGNER ELECTRIC SOLDERING DEVICE Filed Oct. 51;, 1922 v EWULL m 7267' Patented Apr, 14, 1925 UNITED STATES I WAGNERII'OF LOVELAND, COLORADO.

ELECTRIC soLnEnme nsvrcn Application filed October 31, 1922. Serial No. 598,224

To all whom it may concern:

Be it known that 1,,EM1L Waennmnntending to become a citizen of'the United .States, residing at Loveland, in the county of Larimer and State of Colorado, (now subject of Switzerland), have invented a new anduseful Electric Soldering Device, of which the following is a specification.

This invention relates to improvements in electric soldering irons and has for an object the provision of an iron which may be operated on a low" current voltage, such as a storage battery, provision being made for conveniently controlling the flow of current to the heatingvelement and thus reducing danger of injury to said element or to the battery which supplies the current.

Another object of the invention is the provision of an electric soldering iron' in which the heating element is so constructed and arranged as to provide a maximum amount of resistance at its point of contact with the soldering point and thus obtain a maximum amount of heat from a relatively small current supply, provision being made for insuring proper contact between the heating-element and the soldering point so that an even flow of current and an even heat is assured.

Another object of the invention is the provision of means for resisting the travel of heat from the heating element to the handle of the iron, so that the said handle will not become overheated. K

With the above and otherobjects in'view the invention further includes the following novel features and details of construction, to be hereinafter more fully described, illustrated in the aceompanyin drawings and pointed out in the appende claims.

In the drawings Figure 1 is a longltudinal sectional view of a soldering-iron constructed in accordance with the invention.

Figure 2 is an elevation of the heating element and rod removed from the iron..

Figure 3 is a sectional view of the solderin point.

referring to the drawings in detail wherein like characters of reference denote corresponding parts, the reference character 10 indicates the shank of the iron which is of tubular form and which is provided at one end with a suitable handle 11, the latter having a central bore 12 within one end of which the shank 10 is secured.

switch Threadedly and removably secured to the "opposite end of the shank lOis a soldering point 13 of suitable material, the said point bein provided with a socket 14 within whic is positioned a. heating element 15. An insulating sleeve 16 is interposed between the heating element and the adjacent walls of the socket 14.

The heating element 15 is carried at one end of a rod 16. through which current is supplied to the heating element as will be later described. One end of the heating element is pointed as indicated at 17 and this pointed end engages the bottom wall of the socket 14 and forms resistance to the flow of current, whereby the element will become quickly heated with the greatest amount of heat at its point of contact with the soldering point 13. One end of the rod 16 is connected to a conductor 18 which leads to a suit-able source of current, the conductor 18 passing through an opening provided in a plate 19 which closes one end of the bore 12 of the handle. A spring-20 surrounds the conductor 18 and has one end bearing against the plate 19 and its opposite end against a shoulder or collar .21- carried by thickness of the rod at this point and pro-.

viding air gaps.

Secured to the handle 11 is a spring switch arm 24 which has secured thereto a conductor 25 also 1 to the source tubular shank 10 so as to close a circuit through the iron, thecireuit' broken as soon as pressure upon the swltch arm the difierent parts of the iron The rod 16 of current. This spring swltch arm 24 is adapted to have its free end engage the is released. In order to hold the switch in closed position, the arm 24 carries a contact screw 26 which maybe engaged with the shank 10 and accidental opening of the prevented.

The invention is susceptible of various changes in its form, proportions and minor details of construction and the right is herein reserved to'make such changes as roperly fall within the scope of the ment to heat the soldering point, a switch.

for controlling the supply ofcurrent and means included in the currentconducting means for resisting the travel of heat from the heating element to the handle.

2. An electric soldering iron comprising a tubular shank,

opposite end of the shank and provided with a socket, an electric heating element within said socket, a pointed extremity on said element for engaging the relatively flat end wall of the socket of the soldering point, whereby resistance at the point of engagement is increased, means including a rod having one end secured to the heating element, whereby current may be supplied to the heating element, spring means for forcing the heating element in engaged position and'a switch for controlling the supply of current to the heating element a handle at one end thereof,

a handle at one end thereon a soldering point removably secured to the 3. An electric soldering iron comprising a tubular shank, a handle at one end thereof, a soldering point remova'bly secured to the opposite end of the shank and provided with a socket, an electric heating element within said socket and engaging the s0ldering point, means including a rod having one end secured to the heating element, whereby current may be supplied to said element, said rod being provided with notches defiiningair gaps to resist travel of heat, spring means for forcing the heating elementin engaged position and a switch for controlling the supply of current to the heating element.

4. An electric soldering iron comprising a tubular shank, a handle at one end thereof, a' soldering point removably secured to the opposite end of the shank and provided with a socket, an electric heating element within said socket and engaging the soldering point, means includin a rod having one end secured to the heating element.

whereby current may be supplied to the heating element, spring means for forcing the heating element. in engaged position, a spring switch for controlling the supply of current to the heating element and meanswhereby the switch may be secured in closed position.

EMIL WAGNER. 

